Changeset 1379:96a34c0904dd in lemon-0.x

Timestamp:

04/21/05 17:15:12 (20 years ago)

Author:

athos

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@1828

Message:

I really have no idea about what to write here now.

Location:

src/lemon

Files:

• lp_base.h (modified) (2 diffs)
• lp_glpk.cc (modified) (1 diff)
• lp_glpk.h (modified) (1 diff)

src/lemon/lp_base.h

@@ -434 +434 @@
     virtual void _setRowLowerBound(int i, Value value) = 0;
     virtual void _setRowUpperBound(int i, Value value) = 0;
+    virtual void _setRowBounds(int i, Value lower, Value upper) = 0;
     virtual void _setObjCoeff(int i, Value obj_coef) = 0;
     virtual void _clearObj()=0;
@@ -656 +657 @@
     /// Value, -\ref INF or \ref INF.
     void rowBounds(Row c, Value lower, Value upper) {
-      _setRowLowerBound(rows.floatingId(c.id),lower);
-      _setRowUpperBound(rows.floatingId(c.id),upper);
+      _setRowBounds(rows.floatingId(c.id),lower, upper);
+      // _setRowUpperBound(rows.floatingId(c.id),upper);
     }
     

src/lemon/lp_glpk.cc

@@ -260 +260 @@
       }
     }
+  }
+
+  void LpGlpk::_setRowBounds(int i, Value lb, Value ub)
+  {
+    //Bad parameter
+    if (lb==INF || ub==-INF) {
+      //FIXME error
+    }
+
+    if (lb == -INF){
+      if (ub == INF){
+        lpx_set_row_bnds(lp, i, LPX_FR, lb, ub);
+      }
+      else{
+        lpx_set_row_bnds(lp, i, LPX_UP, lb, ub);
+      }
+    }
+    else{
+      if (ub==INF){
+        lpx_set_row_bnds(lp, i, LPX_LO, lb, ub);
+
+      }
+      else{
+        if (lb == ub){
+          lpx_set_row_bnds(lp, i, LPX_FX, lb, ub);
+        }
+        else{
+          lpx_set_row_bnds(lp, i, LPX_DB, lb, ub);
+        }
+      }
+    }
+
   }
   

src/lemon/lp_glpk.h

@@ -63 +63 @@
     virtual void _setRowLowerBound(int i, Value value);
     virtual void _setRowUpperBound(int i, Value value);
+    virtual void _setRowBounds(int i, Value lower, Value upper);
     virtual void _setObjCoeff(int i, Value obj_coef);
     virtual void _clearObj();